This sleeping bird kept its eyes closed and head facing away most of the time, but a narrow eye-slit is visible. This is the largest of the Potoos ranging from southern Mexico to Brazil and Paraguay. It is only a few inches longer than the Common Potoo but appears to be more than twice the bulk of that smaller bird. Potoos are cryptically colored night-birds, similar to the unrelated frogmouths of Australia and New Guinea. This species is the size of a large owl. It occurs in two color morphs, one grayer as seen in this individual, and the other washed more or less heavily with buffy brown. It is usually pronounced Poe-TOO. Canon PowerShot SX60 HS.
References:
Adams, K. (2011). Great Potoo (Nyctibius grandis), version 1.0. In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/nb.grepot1.01
Cohn-Haft, M. & Kirwan, G.M. (2019). Great Potoo (Nyctibius grandis). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/55153 on 3 July 2019).